Said toekelson and fyebeeg as



(No Model.)

I. JOHNSON, R. T. TORKELSON 81; A. FYRBERG.

REVOLVER.

No. 339,301. Patented Apr. 6, 1886.

UNITED STATES PATENT OFFICE.

IVER JOHNSON, REINHARD '1. TOBKELSON, AND ANDRElV FYRBERG, OF WORCESTER, MASSACHUSETTS; SAID TORKELSON AND FYRBERG AS- SIGNORS TO SAID JOHNSON.

REVOLVER.

SPECIFICATION forming part of Letters Patent No. 339,301, dated April 6,1886. Application filed January 4,1886. Serial No. 187,558. (No model.)

To all whom it may concern.- the inner surface of the sleeve 0, while the Be it known that we, IVER JOHNSON, REIN- center part, E, is turned down in the form of HARD T. TORKELSON, and ANDREWFYRBERG, a double cone, with a hole, a, in the smaller 50 all of the city and county of \Vorcester and part, as fully indicated in Figs. 1 and 2 of the Commonwealth of Massachusetts, have inventdrawings.

ed certain new and useful Improvements in Against the right-hand end of shoulder part Fire-Arms; and we do hereby declare the fol- E one end of a spiral spring, F, presses against lowing to be a full, clear, and exact descripthe inner flange, e, of the sleeve 0, and the ac 5 5 tion of the same, reference being had to the action of spring F is such as to keep the ejectorcompanying drawings and letters of reference rod D and its spider D in their normal posimarked thereon, forming a part of this specitions, as shown in Fig. 1, when not acted upon fication, and in which by the ejector finger or lever G, which is ar- Figure lrepresents aside view, partlyin secranged in a slot or chamber, G, in the rear'ee tion and partly in full lines, of so much of areunder portion, A, of barrel part A.

volving fire-armasisnecessaryto illustrateour Ejector-lever G is provided with a slot, f, present invention, as will be hereinafter dethe upper part, f, being rounded to receive scribed. Fig. 2 represents a side view of the the pivot H, upon which the forearm I turns same parts shown in Fig. 1, with the trigger, when lowered to throw out the ejector-rod D 6 5 its support, and rearportion of the arm shown and its spider D. Slot f is enlarged at f 2 and 2 in Fig 1 turned down as it appears when the contracted at f at the bottom, the large part ejector is operated to eject the cartridge-shells. f 2 being adapted to receive the flanges g g of Fig. 3 represents a top View of aportion of the the cap-piece H, which in turn has a narrow top strap by which the breech and rear part of slot, 9, at its lower end and a concavity, g, the arm are locked to the barrel, a portion beat its upper end. Concavity g fits pivot H,

2 5 ing broken away, as shown in section, to illuswhile one end of a small spiral spring, 9 fits trate the locking devices more fully. Fig. 4 in the narrow slot the other end of spiral represents a perspective view of the sliding spring 9 fitting in the slot f of lever G. notched locking-piece, as will be hereinafter The office of ejector lever G is to throw 7 described. Fig. 5 represents a perspective out the ejector-rod D, and the operation is as 0 view of a portion of the breech-piece broken follows: WVhen the forearm I is turned down, off on dotted line a, Fig. 2, and turned around lever G turns with it, being forced to turn by to the righttoshowits construction morefully. the flange or projection e on the forearm l Figs. 6, 7, 8, and Qrepresent perspective views striking against its lip e, and as lever G conof detached parts, as will be hereinafter more tinues to turn its point h, passing through a 3 5 fully described. slot, h, in the lower side of the sleeve 0, strikes To enable those skilled in the art to which the inner end of the shoulder -piece E and ourinventionbelongsto make andusethesame, forces out the ejector-rod and its spider, as inwe will proceed to describe it more in detail. dicated in Fig. 2, thereby ejecting the car- 8 In the drawings, the part marked A is the tridgeshells.

40 rear portion of the barrel, shown in section. I is a stationary cam, against which the B is the cylinder, fitted to turn on sleeve 0, beveled end 7& of lever G strikes, and said held in place by means of the screw-pin b. lever is pressed up as forearm I is lowered, Sleeve 0 also receives and supports the ejectoruntil its lip e has been moved out of contact rod D, and which rod is provided with a spiwith projection 6, (see Fig. 2,) when the ex- 5 der, D, on the outer end, and with a shoulder pansive force of spring F throws ejector-rod or hub part, E, at its other end, the ends of D and lever G back to their normal positions. said shoulder part E being made to fit easily (Shown in Fig. 1.)

As forearm I is turned back to the position i der m of locking thumb-piece L, which passes shown in Fig. 1 projection 6 comes in con tact with the outer curved surface of lip 6 when spring g and yielding lever G moves lengthwise and projection e is carried or moved beyond lip c", after which spring 9 forces lever G, so that its lip 6' will again be under projection 0. (See Fig. 1.) Flanges g g on the cap-piece H come in contact with shoulders in lever G, thereby preventing cappiece H from rising so far as to obstruct the passage of pivot H. The narrow end of lever G coming in contact with the stationary part h", its back motion is arrested, when it is thrown back by the action of spring F, through ejector-rod D, and also when projection e strikes the back of lip e,when the forearm is returned to its locked position, and by which latter operation lever G is forced longitudinally until its lip 6" has passed projection 6, when lever G, by theaction of spring 9, moves back and its lip c enters the pocket under projection e,the latter forming the top thereof.

Trigger .T is pivoted ati to the forearm I, and it is also provided with a slot,-J, in which the trigger-locking lever J is pivoted at k, and said locking-lever has a finger-arm, J, and a locking-arm, J.

J 5 is the cylinder-stop.

From slot J extends a spiral spring the lower end of which spring rests on the locking-arm J of trigger-locking lever J thereby keeping arm J down, as shown in full lines, Fig. 2, and in which position its end 6 will strike against the triggerguard at e, thereby locking trigger J, which cannot be moved accidentally or otherwise to fire the arm until arm J, of trigger-locking lever J has been drawn back far enough to elevate the end 6 of its arm J above the point e of the trigger-guard, as indicated in Fig. 1 of the drawings, after which arm J moves with the rear upper part of trigger J up into chamber J in firing the arm. By this arrangement accidental firing of the arm is prevented, and that, too, in a simple and convenient manner. The same motion of the finger necessary to fire the arm also unlocks the trigger J consequently extra motions are avoided.

By interposing cap-piece H between pivot H and sprlng g a free hole through the mov-' able lever G is always preserved, whereas without the cap-pieceif lever G should be removed spring 9 would spring up into the hole previously occupied by pivot H, and the latter could not be conveniently inserted again, while there would be liability of injuring the spring by the operation.

The top strap, K, (shown partly in section in Figs. 1 and 2,) is provided with two slots or openings, said slots intersecting each other at right angles. The vertical slot K receives the projection K (shown in section, Fig. 3) of the breech part K, connected with forearm I. Projection K is provided on its righthand side with a notch, m, to receive the shoulhole to receive the through strap, K.

Thumb locking-piece L is provided with two notches-one, L, to receive projection K of the breech part K and the other, L to receive spiral spring a and holding-pin 0- and these parts are combined together as follows: Spiral springn is arranged horizontally in notch L with one end resting against one shoulder, a, of thumb-piece L, while the other end presses against holding-pin 0, inserted in a vertical hole in strap K, so as to stand or abut against shoulder a of thumb-piece L, thus holding both spring a and thumb lockingpiece L in their proper relative positions, as fully indicated in Fig. 3.

The operation of this part of our invention is as follows: When forearm I is turned up, projection K enters the vertical slot K, and, pressing against shoulder at on thumb-piece L, forces the latter to the right until notch m comes opposite shoulder m on thumb-piece L, when the latter is forced to the left by the action of spring it, thus bringing its shoulder at into notch m in projection K and locking the parts securely together.

To unlock the parts it is only necessary to press locking-piece L to the right far enough to disengage the shoulder m from notch m in projection K.

Upon the breech part K is constructed the member K, which extends upward through the strap K and forms the rear sight, p, as clearly shown in Fig. 5.

This method of construction is more simple, durable, and less expensive than has been hitherto employed on revolvers constructed upon the breakdown or tilting principle.

We are aware that rear sights have been constructed upon the stationary frame of revolvers, but not on those of the breakdown or tilting principle.

Having described our improvement in firearms, what we claim as new and of our invention, and desire to secure by Letters Patent, 153-- 1. The combination, with the lock mechanism of a fire-arm and firing-trigger hinged to the forearm, of a firing-trigger-locking lethe horizontal slot K in the top ver, J", pivoted in the firing-trigger below.

the firing-tri gger pivot, and spring k, arranged in a hole in the upper part of the firing-trigger, the lower end of said spring pressing down upon the upper edge of arm J of trigger-locking lever J, and in rear of its pivot k in the firing trigger, substantially as described, and for the purpose set forth.

2. The combination, with ejector -rod D, stationary cam G, and hinged forearm 1, provided with projection e, which forms the top of a pocket for the reception of lip 6 of slotted lever G, provided with lip e, to engage with projection e, pivot H, upon which both forearm I and lever to fit the slot in lever G, pivot H, and spring G turn, flanged cap H,

y for keeping lip c in position to engage with K, spring 11, and holding-pin o, substantially I0 projection e, and mo abIe 1ever G, to throw as and for the purposes set forth. out BJQCtOf-lOd D to e ect the cartridge-shells IVER JOHNSON when forearm I is turned down, substantially REINHARD T TORKELSON as described.

3. The combination, with strap K, provided ANDRE, FYRBERG' Witnesses:

with a transverse slot, K*, and slotted projection K on breech part K of the notched loek- THos. H. Done-1s, ing thumb-piece L, arranged in transverse slot 1 HENRY L. MILLER. 

